Description
Class C02F : TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
Subclass 1/20: Treatment of water, waste water, or sewage (C02F 3/00-C02F 9/00 take precedence) by degassing, i.e. liberation of dissolved gases
C02F 1/20
Sub-Class
Stats
- 585 US PATENTS IN FORCE
- 102 US APPLICATIONS PENDING
- 184 Total Patent Owners
- 1,682 TOTAL INVENTORS
Recent Patents
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12263448 | Separation membrane module and liquid treatment system including the same | Dec 04, 19 | Apr 01, 25 | Nitto Denko Corporation |
| 12260312 | Soft-sensor to measure pH of treated seawater | Jan 04, 21 | Mar 25, 25 | Saudi Arabian Oil Company |
| 12252415 | Water filtration and aeration unit | Jun 07, 22 | Mar 18, 25 | WETS LLC |
| 12252424 | Method and device for anaerobic digestion | Dec 24, 19 | Mar 18, 25 | Orege |
| 12252428 | System and method for recovering ammonia from an ammonia-containing liquid | May 27, 22 | Mar 18, 25 | Process Limited |
| 12246979 | Method and system for providing ultrapure water with flexible lamp configuration | Jun 05, 23 | Mar 11, 25 | Evoqua Water Technologies LLC |
| 12246978 | Water treatment system and method | Nov 19, 20 | Mar 11, 25 | Hyperion Water Technologies LLC |
| 12227441 | Mineral recovery enhanced desalination (MRED) process for desalination and recovery of commodity minerals | Apr 09, 21 | Feb 18, 25 | UNM Rainforest Innovations |
| 12227442 | Treatment of saline water for agricultural and potable use | Nov 21, 23 | Feb 18, 25 | Evoqua Water Technologies LLC |
| 12226713 | Installation for multiple skimming | Apr 29, 20 | Feb 18, 25 | SEARAS AS |
| 12221371 | Systems and methods for producing ultrapure water for semiconductor fabrication processes | Mar 21, 22 | Feb 11, 25 | TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD. |
| 12221585 | Method for minimizing fouling, corrosion, and solvent degradation in low-temperature refinery and natural gas processes | Dec 16, 20 | Feb 11, 25 | BL Technologies, Inc. |
| 12208344 | Foam reduction and/or prevention methods and associated systems and articles | Oct 19, 22 | Jan 28, 25 | Massachusetts Institute of Technology |
| 12202743 | Direct removal of carbon dioxide from oceanwater based on a composite membrane | Mar 20, 24 | Jan 21, 25 | Captura Corp. |
| 12180103 | Treatment of saline water for agricultural and potable use and for generation of disinfectant solution | Feb 27, 19 | Dec 31, 24 | Evoqua Water Technologies LLC |
| 12172914 | Reflux unit and sewage treatment system | Sep 28, 22 | Dec 24, 24 | GUANGDONG BRUNP RECYCLING TECHNOLOGY CO., LTD.; HUNAN BRUNP RECYCLING TECHNOLOGY CO., LTD.; HUNAN BRUNP EV RECYCLING CO., LTD.; |
| 12161951 | Deaerator | Jun 20, 20 | Dec 10, 24 | Spirax-Sarco Limited |
| 12150826 | Apparatus and method for removing amalgam and waste particles from dental office suction effluent | Mar 22, 22 | Nov 26, 24 | Solmetex, L.L.C. |
| 12151954 | Automatic analyzer | Mar 11, 20 | Nov 26, 24 | HITACHI HIGH-TECH CORPORATION |
| 12145864 | Method and system for removing hydrogen sulfide from sour oil and sour water | Sep 19, 23 | Nov 19, 24 | Anschutz Exploration Corporation |
Recent Publications
| Publication # | Title | Filing Date | Pub Date | Patent Owner |
|---|---|---|---|---|
| 2025/0115,504 | SYSTEM FOR TREATING PRODUCED WATER RESULTING FROM OIL EXTRACTION AND PNEUMATIC FLOCCULATION METHOD BY INJECTION OF INERT GAS INTO HEAT EXCHANGERS | Oct 07, 24 | Apr 10, 25 | Not available |
| 2025/0109,043 | SYSTEMS AND METHODS FOR REMOVING DISSOLVED AND SUSPENDED ORGANICS FROM A WATER SOURCE | Oct 03, 24 | Apr 03, 25 | Not available |
| 2025/0099,876 | SYSTEM AND METHODS OF USING A FILTERING BAG | Sep 27, 24 | Mar 27, 25 | Oceaneering International, Inc. |
| 2025/0075,139 | System and process for producing synthetic fuels without emitting carbon dioxide | Apr 14, 22 | Mar 06, 25 | EDL ANLAGENBAU GESELLSCHAFT MBH |
| 2025/0066,679 | SYSTEMS, METHODS, AND DEVICES FOR PROCESSING CRUDE OIL | Dec 23, 22 | Feb 27, 25 | Enertech Holding Company KSCC |
| 2025/0066,222 | Method and System for Removing Hydrogen Sulfide From Sour Oil and Sour Water | Nov 08, 24 | Feb 27, 25 | Anschutz Exploration Corporation |
| 2025/0066,232 | MULTI-STAGE WASHER INCLUDING A WATER TREATMENT SYSTEM | Aug 09, 24 | Feb 27, 25 | Stolle Machinery Company, LLC |
| 2025/0051,185 | METHOD FOR REDUCING A CONTENT OF FORMALDEHYDE IN AN AQUEOUS MEDIUM | Dec 02, 22 | Feb 13, 25 | Not available |
| 2025/0025,840 | High-Efficiency Degassing Polyolefin Hollow Fiber Membrane and Preparation Therefor and Use Thereof | Oct 07, 24 | Jan 23, 25 | Not available |
| 2025/0026,668 | METHOD AND APPARATUS FOR RECOVERING METHANE FROM A FLOW OF WATER | Oct 27, 22 | Jan 23, 25 | Not available |
| 2025/0026,674 | Method and System for Optimizing Lightweight Biodigester | Jul 18, 24 | Jan 23, 25 | Not available |
| 2025/0019,877 | CARBON MONOLITHS AND METHODS OF MANUFACTURING CARBON MONOLITHS | Jul 05, 24 | Jan 16, 25 | Not available |
| 2025/0001,358 | SYSTEMS AND METHODS FOR CARBON SEQUESTRATION USING ENHANCED WEATHERING | Sep 09, 24 | Jan 02, 25 | Not available |
| 2024/0399,271 | LIQUID-SEALED PUMP OPERATING METHOD, MEMBRANE DEGASIFIER, PURE WATER PRODUCTION SYSTEM, AND PURE WATER PRODUCTION METHOD | Jul 20, 22 | Dec 05, 24 | Nomura Micro Science Co. Ltd. |
| 2024/0399,301 | OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER | May 30, 23 | Dec 05, 24 | Not available |
| 2024/0400,923 | ACTIVATED OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER | May 30, 23 | Dec 05, 24 | Not available |
| 2024/0400,426 | OXIDIZING COMPOSITIONS FOR REMOVING SULFUR COMPOUNDS FROM HYDROCARBON FUELS AND WASTEWATER | May 30, 23 | Dec 05, 24 | Not available |
| 2024/0400,415 | PLANT AND PROCESS FOR SEPARATING AMMONIA AND CARBON DIOXIDE CONTAINING WASTEWATER STREAM TO CONCENTRATED AQUEOUS AMMONIA SOLUTION AND PURIFIED WASTEWATER STREAM | Aug 24, 22 | Dec 05, 24 | Not available |
| 2024/0390,819 | Method and Apparatus for Deoxygenation of Liquids | Jul 30, 24 | Nov 28, 24 | Not available |
| 2024/0390,820 | DEFOAMING AGENT AND COMPOSITIONS CONTAINING THE DEFOAMING AGENT | May 24, 24 | Nov 28, 24 | Solenis Technologies, L.P. |
Top Owners in This Subclass
| Upgrade to the Professional Level to view Top Owners for this Subclass.Learn More |
|---|
Patents Issued To Date - By Filing Year
Average Time to Issuance
- 32 Months (last 2 years Issuances)
- 32 Months (last 5 years Issuances)